EP0915729A2 - Dispositif pour la filtration d'un fluide contamine - Google Patents

Dispositif pour la filtration d'un fluide contamine

Info

Publication number
EP0915729A2
EP0915729A2 EP98909206A EP98909206A EP0915729A2 EP 0915729 A2 EP0915729 A2 EP 0915729A2 EP 98909206 A EP98909206 A EP 98909206A EP 98909206 A EP98909206 A EP 98909206A EP 0915729 A2 EP0915729 A2 EP 0915729A2
Authority
EP
European Patent Office
Prior art keywords
guide
gap
portafilter
mass
filtering
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98909206A
Other languages
German (de)
English (en)
Other versions
EP0915729B1 (fr
Inventor
Wolfram Kalt
Franz Schwenninger
Michael Longin
Rolf-Rüdiger Stude
Jan-Udo Kreyenborg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lenzing AG
Kreyenborg Verwaltung und Beteiligungen GmbH and Co KG
Original Assignee
Lenzing AG
Chemiefaser Lenzing AG
Kreyenborg Verwaltung und Beteiligungen GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lenzing AG, Chemiefaser Lenzing AG, Kreyenborg Verwaltung und Beteiligungen GmbH and Co KG filed Critical Lenzing AG
Publication of EP0915729A2 publication Critical patent/EP0915729A2/fr
Application granted granted Critical
Publication of EP0915729B1 publication Critical patent/EP0915729B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/70—Regenerating the filter material in the filter by forces created by movement of the filter element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/254—Sealing means
    • B29C48/2545—Sealing means for filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/69—Filters or screens for the moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/255—Flow control means, e.g. valves
    • B29C48/2554—Flow control means, e.g. valves provided in or in the proximity of filter devices

Definitions

  • the present invention has for its object to provide a device for filtering a contaminated fluid, which device has a housing with an inflow and an outflow channel for the contaminated or filtered fluid, which housing has a guide for a portafilter body, a portafilter body, which is slidably mounted in the guide of the housing, and has a sieve, which is located in the portafilter body, in which the formation of the films or coatings described above is prevented.
  • the invention is based on the knowledge that the problems which a degenerated cellulose solution which deposits on the portafilter body cannot be solved by trying to prevent a further increase in the accuracy of fit between the portafilter body and the guide. that a coating can form. It is therefore not expedient to seal the filtering device as well as possible, as is desired in the prior art, but rather, on the contrary, a gap should be provided from which a small part of the processed cellulose solution can specifically escape. With certain components, for example with a filter, it is often not possible at all to effect continuous sealing of mass-flow parts.
  • thermostability of the cellulose solution decreases.
  • Spacers can now be used to prevent the gap from closing on the side of the filter holder body facing away from the flow during filtration operation.
  • strips can be provided as spacers, as shown in FIGS. 3 and 4.
  • the strips are provided with the reference number 8.
  • the strips 8 are attached to the filter holder body 4.
  • the remaining reference numerals designate the same device features as in FIGS. 1 and 2.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Materials (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Mold Materials And Core Materials (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Filtration Of Liquid (AREA)
EP98909206A 1997-03-17 1998-03-17 Dispositif pour la filtration d'un fluide contamine Expired - Lifetime EP0915729B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT0046597A AT404561B (de) 1997-03-17 1997-03-17 Vorrichtung zum filtrieren eines verunreinigten fluids
AT46597 1997-03-17
AT465/97 1997-03-17
PCT/AT1998/000068 WO1998041305A2 (fr) 1997-03-17 1998-03-17 Dispositif pour la filtration d'un fluide contamine

Publications (2)

Publication Number Publication Date
EP0915729A2 true EP0915729A2 (fr) 1999-05-19
EP0915729B1 EP0915729B1 (fr) 2003-06-04

Family

ID=3491349

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98909206A Expired - Lifetime EP0915729B1 (fr) 1997-03-17 1998-03-17 Dispositif pour la filtration d'un fluide contamine

Country Status (5)

Country Link
EP (1) EP0915729B1 (fr)
AT (2) AT404561B (fr)
AU (1) AU6384798A (fr)
DE (1) DE59808606D1 (fr)
WO (1) WO1998041305A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9468873B2 (en) 2011-06-27 2016-10-18 Nordson Corporation Filtering device for fluids

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2740522B1 (fr) 2012-12-06 2015-10-21 Aurotec GmbH Procédé et dispositif de nettoyage d'un fluide
CN107520555B (zh) * 2017-08-22 2018-09-07 新乡市新垣防腐保温制品有限公司 一种烟雾净化装置
EP3827963B1 (fr) * 2019-11-28 2025-12-31 Nordson Corporation Dispositif de filtrage d'un fluide, en particulier d'une fusion de matière plastique comprenant des impuretés, ainsi qu'agencement de soupape pour un tel fluide
CN117085386B (zh) * 2023-08-18 2025-09-23 浙江菲尔特过滤科技股份有限公司 流延无晶点过滤器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3013038C2 (de) * 1980-04-03 1983-02-03 Werner & Pfleiderer, 7000 Stuttgart Siebwechselvorrichtung für Extruder
DE3617370A1 (de) * 1986-05-23 1987-12-10 Hoechst Ag Filtervorrichtung zum gleichmaessigen filtrieren von kunststoffschmelzen
DE3840904C1 (fr) * 1988-12-05 1989-10-05 Kreyenborg Verwaltungen Und Beteiligungen Kg, 4400 Muenster, De
AT395825B (de) * 1991-03-25 1993-03-25 Erema Filtriervorrichtung fuer zu reinigende fluide
DE4129905C1 (fr) * 1991-08-08 1992-10-08 Kreyenborg Verwaltungen Und Beteiligungen Kg, 4400 Muenster, De
AT400128B (de) * 1992-02-14 1995-10-25 Erema Filtriervorrichtung für fliessfähiges material, insbesondere für verunreinigte kunststoffschmelzen
JP2855088B2 (ja) * 1995-04-19 1999-02-10 株式会社日本製鋼所 スクリーンチェンジャの瀘過方法及びスクリーンチェンジャ
DE19519907C2 (de) * 1995-05-31 1997-03-27 Kreyenborg Verwaltungen Siebwechselvorrichtung für kunststoffverarbeitende Anlagen
AT404800B (de) * 1996-11-19 1999-02-25 Chemiefaser Lenzing Ag Vorrichtung zum filtrieren eines fluids

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9841305A2 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9468873B2 (en) 2011-06-27 2016-10-18 Nordson Corporation Filtering device for fluids

Also Published As

Publication number Publication date
WO1998041305A3 (fr) 1999-03-04
WO1998041305A2 (fr) 1998-09-24
ATE242033T1 (de) 2003-06-15
ATA46597A (de) 1998-05-15
DE59808606D1 (de) 2003-07-10
AT404561B (de) 1998-12-28
AU6384798A (en) 1998-10-12
EP0915729B1 (fr) 2003-06-04

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